If you're looking for a sunnier, gentler sound of heavy metal classics like Black Sabbath's "Iron Man," then pick up a copy of "The Avett Brothers Sing Heavy Metal," who made an appearance on NBC's LATE NIGHT WITH Jimmy Fallon! Check out the performance below!

In the segment from the late night show, Steve Joshua, as played by Fallon, sells America on a "sunnier, more gentle" version of heavy metal as performed by folk stars The Avett Brothers.

As the host lists some of the songs on the album, fake hell fire burns across the bottom of the screen. The four-piece Avett Brothers then take the stage for a genuine strummin' and pickin' version of Iron Maiden's classic song, "Run to the Hills."